EP2566636B1 - Vorrichtung zum Herstellen von Dosenkörpern - Google Patents

Vorrichtung zum Herstellen von Dosenkörpern Download PDF

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Publication number
EP2566636B1
EP2566636B1 EP11717655.2A EP11717655A EP2566636B1 EP 2566636 B1 EP2566636 B1 EP 2566636B1 EP 11717655 A EP11717655 A EP 11717655A EP 2566636 B1 EP2566636 B1 EP 2566636B1
Authority
EP
European Patent Office
Prior art keywords
disc
cup
bodymaker
metal disc
die
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11717655.2A
Other languages
English (en)
French (fr)
Other versions
EP2566636A1 (de
Inventor
Daniel Egerton
William Woulds
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crown Packaging Technology Inc
Original Assignee
Crown Packaging Technology Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Crown Packaging Technology Inc filed Critical Crown Packaging Technology Inc
Priority to EP11717655.2A priority Critical patent/EP2566636B1/de
Publication of EP2566636A1 publication Critical patent/EP2566636A1/de
Application granted granted Critical
Publication of EP2566636B1 publication Critical patent/EP2566636B1/de
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20Deep-drawing
    • B21D22/28Deep-drawing of cylindrical articles using consecutive dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/18Lubricating, e.g. lubricating tool and workpiece simultaneously
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02Advancing work in relation to the stroke of the die or tool
    • B21D43/04Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/12Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by chains or belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00Making hollow objects
    • B21D51/16Making hollow objects characterised by the use of the objects
    • B21D51/26Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/2692Manipulating, e.g. feeding and positioning devices; Control systems

Definitions

  • This invention relates to a long stroke press or, as it is known in the can making industry, a body maker according to the characterizing portion of claim 1 for drawing hollow articles such as metal containers or cans and to a method of forming a can body.
  • cups are fed to the bodymaker and carried by a punch on the end of the ram, through a series of ironing dies to obtain the desired size and thickness of the can.
  • the can body carried on the punch may contact a bottom forming tool so as to form a shape such as a dome on the base of the can.
  • the cup is mounted on the free end of a punch which extends from a reciprocating ram, and the cup wall is then "ironed" by passing through one or more ironing dies to lengthen the side wall of the cup and form a can.
  • a cupping press is first fed with a coil of metal, and then punches out discs and makes them into cups.
  • the flat circular blanks or discs of metal are drawn through one or more drawing dies in the cupping press to form the shallow cups.
  • the cups are then transferred to a bodymaker for conversion into the finished can body.
  • the cupping press is an enormous, and extremely expensive, machine. It is therefore an aim of this invention to provide alternative equipment and methods, which could replace or reduce the footprint (floor space) required by the conventional cupping press.
  • By reducing or avoiding the need for the significant capital expenditure of the cupping press it would become possible to eliminate the need to stock large coils, and all the scrap (the 'web') created by the cupper, which would normally have to be shipped back to the supplier to get the scrap value back, is avoided.
  • the bodymaker of the invention thus avoids all the expense and bulk of a traditional free-standing cupper. By using pre-cut discs there is no scrappage resulting from in situ forming of discs on a cupping press.
  • the disc feed further includes two sets of rollers for gripping and driving the disc to the locator.
  • the feed may also use a feed plate with spring-loaded element, such as a pawl, for holding the disc against the locator.
  • the disc may be positively located by a positioning cam and spring-loaded cushion. If there is a risk, for example that the draw pad might hit the cushion, one or more of the roller sets may be off-centre.
  • the discs may be un-lubricated and the disc feed may comprise a vacuum feed to separate the discs and a flighted belt to push the discs along.
  • This alternative comprises, for example, a double sheet detector with sprayer, two belts and a turnover path for double-sided lubrication.
  • a method of forming a can body comprising: feeding a disc directly into a can bodymaker; positioning the disc centrally to a blankholder; clamping the disc against a draw die; moving a blank holder towards a redraw die and thus, together with the draw die, form the disc into a cup; clamping the cup against the redraw die; picking up the cup on a punch on a ram; ironing the cup by carrying the cup through at least the redraw die and one or more ironing dies thereby forming the cup into a can body.
  • the feeding step of this method may comprise moving the disc from the feed plate through rollers into the bodymaker.
  • the feeding step may involve lifting an unlubricated disc off the feed plate by vacuum and pushing the disc along a flighted belt; spraying lubricant on both sides of the disc; and pushing the disc into the bodymaker.
  • the embodiment of figures 1 to 7 uses a roller feed arrangement 1 and feed plate slide 2.
  • the discs are stacked in a hopper 3, which is located above the infeed sitting on a dead plate. Down the centre of the dead plate is a slot with a short stroke slide.
  • the slide would have a recess or spring-loaded finger or pawl, which would protrude the thickness of the disc 5.
  • the rollers 6, 7 move the disc 5 around a small curve and are easy to drive.
  • the large rollers of the pairs are driven and dictate the disc speed.
  • the small rollers are spring-loaded to supply the nip for gripping the disc.
  • the small rollers maintain contact with the disc or drive roller to avoid skidding.
  • the second set of rollers 7 grips the disc 5 and drives it downwards into a locator 9 ( figure 3 ) which positions the disc centrally to a blank holder ( figure 4 ).
  • the pawl 8 at the top would be pushed back as the disc is fed through and then would spring back above the disc. This holds the disc down against the locator.
  • only the pawl 8 holds the disc in place once the disc is fed down the centre line.
  • a hydraulic clamp or draw pad 10 is mounted in the support plate shown in figure 3 just below the bottom small roller 7'. When the disc is in position, the draw pad 10 clamps the disc 5 against the draw die 11.
  • the blank holder 12 is moving forward as shown by the arrow to turn the disc into a cup 20. The blank holder 12 continues forward to clamp the cup against the redraw die 14.
  • the blank holder 12 is mounted on a hydraulic hold down mechanism such as is described in EP 1292405 B (CROWN PACKAGING TECHNOLOGY, INC.).
  • the blank holder could be mounted on a cam-driven mechanism.
  • FIGS. 1 to 4 The actions of figures 1 to 4 all occur while the ram on the bodymaker is returning to the back of its stroke.
  • Figures 5 to 7 demonstrate additional features, which may be necessary for positive location if the disc is travelling quickly and if the pawl 8 is a little slow in reacting. If this happens, the disc 5 might bounce out of position.
  • the disc 5 is fed off-centre by the rollers 7 in order to avoid the draw pad hitting spring-loaded cushion 15.
  • the cushion clamp 16 prevents the disc 5 from bouncing ( figure 6 ) while the cam 17 rotates as indicated by the arrow in figure 7 in order to position the disc correctly for cup formation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Confectionery (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (10)

  1. Vorrichtung zum Herstellen von Dosenkörpern, umfassend:
    einen Stößel, welcher einen Dorn zum Formen einer Dose aus einem Napf trägt;
    einen Rohlinghalter (12); und
    eine Ziehplatte (10) zum Klemmen einer Metallscheibe (5) gegen eine Ziehform (11);
    wobei der Rohlinghalter (12) in Richtung einer Nachziehform (14) bewegbar und daher zusammen mit der Ziehform (11), zum Formen einer Metallscheibe in Form eines Napfes (20) und zum Klemmen des Napfes (20) gegen die Nachziehform (14) ausgebildet ist, dadurch gekennzeichnet, dass die Vorrichtung zum Herstellen von Dosenkörpern ferner umfasst:
    einen Scheibenförderer (1), welcher zum direkten Fördern der Metallscheibe (5) in die Vorrichtung zum Herstellen von Dosenkörpern ausgebildet ist;
    ein Positioniermittel (9) zum zentrierten Positionieren der Scheibe (5) in Bezug auf den Rohlinghalter (12); und
    zumindest ein Abstreckwerkzeug, wodurch, wenn der Rohlinghalter (12) sich in Richtung der Nachziehform (14) zum Klemmen des Napfes (20) gegen die Nachziehform (14) bewegt, der Napf (20) vom Dorn auf dem Stößel aufgegriffen und durch die Nachziehform (14) und das oder jedes Abstreckwerkzeug transportiert wird, um einen Dosenkörper zu formen.
  2. Vorrichtung zum Herstellen von Dosenkörpern nach Anspruch 1, welche ferner zwei Sätze Rollen (6, 7) zum Greifen und Antreiben der Metallscheibe zum Positioniermittel (9) umfasst.
  3. Vorrichtung zum Herstellen von Dosenkörpern nach Anspruch 1, wobei der Scheibenförderer (1) eine Förderplatte mit einem federbelasteten Element umfasst, wie zum Beispiel eine Sperrklinke (8), zum Festhalten der Metallscheibe gegen dem Positioniermittel (9).
  4. Vorrichtung zum Herstellen von Dosenkörpern nach einem der Ansprüche 1 bis 4, wobei der Scheibenförderer eine Positionierkurve (17) und ein federbelastetes Kissen (15) umfasst.
  5. Vorrichtung zum Herstellen von Dosenkörpern nach Anspruch 1 oder 2, wobei ein oder mehrere Rollensätze außermittig angeordnet sind.
  6. Vorrichtung zum Herstellen von Dosenkörpern nach Anspruch 1, wobei die Metallscheiben ungeschmiert sind und der Scheibenförderer einen Vakuumförderer umfasst, zum Trennen der Metallscheiben und einen wendelförmigen Gurt, zum Weiterschieben der Metallscheiben.
  7. Vorrichtung zum Herstellen von Dosenkörpern nach Anspruch 6, umfassend einen Doppelfoliendetektor mit einer Sprühvorrichtung, zwei Gurte und einen Wendepfad zur doppelseitigen Schmierung.
  8. Verfahren zum Herstellen eines Dosenkörpers, umfassend:
    direktes Fördern einer Metallscheibe (5) in eine Vorrichtung zum Herstellen von Dosenkörpern;
    zentriertes Positionieren der Metallscheibe (5) in Bezug auf einen Rohlinghalter;
    Klemmen der Metallscheibe gegen einer Ziehform (11);
    Bewegen eines Rohlinghalters (12) in Richtung einer Nachziehform (14) um dadurch, zusammen mit der Ziehform (11), die Metallscheibe (5) in einen Napf (20) umzuformen;
    Klemmen des Napfes (20) gegen der Nachziehform (14);
    Aufgreifen des Napfes (20) auf einem Dorn auf einem Stößel;
    Abstrecken des Napfes (20), indem der Napf durch zumindest die Nachziehform (14) und ein oder mehrere Abstreckwerkzeuge transportiert wird, sodass der Napf (20) in einen Dosenkörper umgeformt wird.
  9. Verfahren nach Anspruch 8, wobei der Schritt des Förderns das Bewegen der Metallscheibe von der Förderplatte durch Rollen (6, 7) in die Vorrichtung zum Herstellen von Dosenkörpern umfasst.
  10. Verfahren nach Anspruch 8, umfassend:
    Heben einer ungeschmierten Metallscheibe (5) von der Förderplatte mittels eines Vakuums und Schieben der Metallscheibe entlang eines wendelförmigen Gurts;
    Sprühen eines Schmiermittels auf beiden Seiten der Metallscheibe; und
    Einschieben der Metallscheibe in die Vorrichtung zum Herstellen von Dosenkörpern.
EP11717655.2A 2010-05-06 2011-05-05 Vorrichtung zum Herstellen von Dosenkörpern Active EP2566636B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11717655.2A EP2566636B1 (de) 2010-05-06 2011-05-05 Vorrichtung zum Herstellen von Dosenkörpern

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP10162130 2010-05-06
EP11717655.2A EP2566636B1 (de) 2010-05-06 2011-05-05 Vorrichtung zum Herstellen von Dosenkörpern
PCT/EP2011/057237 WO2011138411A1 (en) 2010-05-06 2011-05-05 Can bodymaker

Publications (2)

Publication Number Publication Date
EP2566636A1 EP2566636A1 (de) 2013-03-13
EP2566636B1 true EP2566636B1 (de) 2016-11-09

Family

ID=44168941

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11717655.2A Active EP2566636B1 (de) 2010-05-06 2011-05-05 Vorrichtung zum Herstellen von Dosenkörpern

Country Status (6)

Country Link
US (2) US10226806B2 (de)
EP (1) EP2566636B1 (de)
CN (1) CN102869461B (de)
BR (1) BR112012028447B1 (de)
MX (1) MX346715B (de)
WO (1) WO2011138411A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10226806B2 (en) * 2010-05-06 2019-03-12 Crown Packaging Technology, Inc. Can bodymaker

Family Cites Families (20)

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US2670705A (en) * 1947-03-13 1954-03-02 Anchor Hocking Glass Corp Method and apparatus for feeding gaskets and for inserting them in closures
US3636748A (en) * 1969-03-24 1972-01-25 George Roberts Hall Drawing of sheet metal
US4034692A (en) * 1973-02-19 1977-07-12 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Installation for making cans of metal
FR2270026B1 (de) * 1974-05-06 1981-10-09 Metal Box Co Ltd
US4183238A (en) * 1975-01-24 1980-01-15 Agence Nationale De Valorisation De La Recherche (Anvar) Double acting precision deep-stamping press
US4020670A (en) * 1976-03-19 1977-05-03 Redicon Corporation Triple action mechanism for producing high reduction cups in a double action press
US4019452A (en) * 1976-05-06 1977-04-26 American Can Company Can end feed mechanism
US4061012A (en) * 1976-07-23 1977-12-06 National Can Corporation Drawing and ironing machine with positive cup feeder
US4166424A (en) * 1977-01-31 1979-09-04 American Can Company Press apparatus and method utilizing same
US4214471A (en) * 1978-02-13 1980-07-29 Redicon Corporation Triple action container drawing and redrawing apparatus
DD134932B1 (de) 1978-03-10 1981-01-28 Karlheinz Beyrich Mehrfachwirkende kurbelpresse
US4534202A (en) * 1980-08-22 1985-08-13 National Can Corporation Cup feeding mechanism
US4928511A (en) * 1988-12-13 1990-05-29 Sequa Corporation Rotary cup infeed
GB2277285B (en) * 1993-04-24 1995-11-29 Metal Box Plc Apparatus for feeding a workpiece to a tool
US5566567A (en) * 1995-04-25 1996-10-22 Sequa Corporation Rotary cup infeed
EP1179497B1 (de) * 1996-10-22 2004-08-04 Seiko Epson Corporation Blattzuführvorrichtung
WO2001097995A1 (en) 2000-06-19 2001-12-27 Crown Cork & Seal Technologies Corporation Drive for a hold down assembly of a can bodymaker and method of use thereof
JP5019720B2 (ja) * 2005-05-24 2012-09-05 小島プレス工業株式会社 電池ケースの製造装置
US20090100892A1 (en) * 2007-10-22 2009-04-23 Dubravko Nardini Method and apparatus for producing untrimmed container bodies
US10226806B2 (en) * 2010-05-06 2019-03-12 Crown Packaging Technology, Inc. Can bodymaker

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
CN102869461A (zh) 2013-01-09
MX2012012816A (es) 2013-05-28
EP2566636A1 (de) 2013-03-13
US10967411B2 (en) 2021-04-06
US20130108398A1 (en) 2013-05-02
MX346715B (es) 2016-10-12
US20190283099A1 (en) 2019-09-19
CN102869461B (zh) 2015-02-04
US10226806B2 (en) 2019-03-12
WO2011138411A1 (en) 2011-11-10
BR112012028447B1 (pt) 2020-09-08
BR112012028447A2 (pt) 2016-07-19

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